Microsoft Office Ltsc 2024 vulnerabilities

CVE-2026-55949 [HIGH] CWE-908 CVE-2026-55949: Use of uninitialized resource in Microsoft Office Excel allows an unauthorized attacker to execute c Use of uninitialized resource in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2026-55024 [HIGH] CWE-843 CVE-2026-55024: Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an un Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2025-59222 [HIGH] CWE-416 CVE-2025-59222: Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally. Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.

CVE-2025-59243 [HIGH] CWE-416 CVE-2025-59243: Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2025-49700 [HIGH] CWE-416 CVE-2025-49700: Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally. Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.

CVE-2025-53734 [HIGH] CWE-416 CVE-2025-53734: Use after free in Microsoft Office Visio allows an unauthorized attacker to execute code locally. Use after free in Microsoft Office Visio allows an unauthorized attacker to execute code locally.

CVE-2025-53730 [HIGH] CWE-416 CVE-2025-53730: Use after free in Microsoft Office Visio allows an unauthorized attacker to execute code locally. Use after free in Microsoft Office Visio allows an unauthorized attacker to execute code locally.

CVE-2025-59238 [HIGH] CWE-416 CVE-2025-59238: Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code locall Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code locally.

CVE-2025-59226 [HIGH] CWE-416 CVE-2025-59226: Use after free in Microsoft Office Visio allows an unauthorized attacker to execute code locally. Use after free in Microsoft Office Visio allows an unauthorized attacker to execute code locally.

CVE-2026-44817 [HIGH] CWE-843 CVE-2026-44817: Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an un Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2026-45469 [HIGH] CWE-122 CVE-2026-45469: Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2025-29816 [HIGH] CWE-349 CVE-2025-29816: Improper input validation in Microsoft Office Word allows an unauthorized attacker to bypass a secur Improper input validation in Microsoft Office Word allows an unauthorized attacker to bypass a security feature over a network.

CVE-2026-69477 [HIGH] CWE-122 CVE-2026-69477: Heap-based buffer overflow in Microsoft Office Access allows an authorized attacker to execute code Heap-based buffer overflow in Microsoft Office Access allows an authorized attacker to execute code locally.

CVE-2025-24075 [HIGH] CWE-121 CVE-2025-24075: Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute cod Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2026-20955 [HIGH] CWE-822 CVE-2026-20955: Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute c Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2026-20948 [HIGH] CWE-822 CVE-2026-20948: Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute co Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally.

CVE-2025-24077 [HIGH] CWE-416 CVE-2025-24077: Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally. Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.

CVE-2025-47173 [HIGH] CWE-641 CVE-2025-47173: Improper input validation in Microsoft Office allows an unauthorized attacker to execute code locall Improper input validation in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2025-54899 [HIGH] CWE-590 CVE-2025-54899: Free of memory not on the heap in Microsoft Office Excel allows an unauthorized attacker to execute Free of memory not on the heap in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2024-43576 [HIGH] CWE-426 CVE-2024-43576: Microsoft Office Remote Code Execution Vulnerability Microsoft Office Remote Code Execution Vulnerability